World 'close to defenseless' from Trump 'insanity' — but one act could stop him: analysis

The world could cut Donald Trump's power should the president push further on Greenland, a political commentator has suggested.

Trump's talk of taking Greenland into US control has caused controversy across the globe, with NATO members denouncing the president's comments on the country. Trump has refused to rule out military action in the country and has consistently stated his want for Greenland is for purposes of national security.

But The Telegraph's international business editor...